Side by side

Halios Seaforth IVvsSpinnaker Hull Riviera

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Seaforth IV
HaliosSeaforth IV
MSRP $765
Hull Riviera
SpinnakerHull Riviera
MSRP $169

At a glance

10 of 29 specs differ
Diameter
Seaforth IV40mm
Hull Riviera42mm
Power Reserve
Seaforth IV40h
Hull Riviera40h
Water Resistance
Seaforth IV200m
Hull Riviera100m
MSRP
Seaforth IV$765
Hull Riviera$169

Full specifications

Case

7 specs
Category
Diver
Sport
Diameter
40mm
42mm
Thickness
12.4mm
15mm
Lug-to-Lug
46.5mm
47.5mm
Lug Width
20mm
22mm
Material
Titanium
316L Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

1 specs
Crystal
Sapphire (double-domed)
Sapphire

Movement

1 specs
Caliber
Sellita SW200-2
SII NH35A

Pricing

1 specs
MSRP
$765
$169

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Halios Seaforth IV

Owners widely praise the Halios Sunburst Blue for its perfect 40mm size, stunning sunburst dial, and excellent lume, with one owner calling it Halios's best effort and a potential "Omega AT killer." The ETA 2824 movement is noted as running smoothly, and the watch is considered a great value with strong resale. Some owners desire larger sizes or different dial colors, and one reviewer found the Sinn 556i more versatile. The sapphire bezel is described as tall and flat, which is a point of contention for some. Overall, owners rate the Halios Sunburst Blue highly for its design, size, and value.

From video reviewers

The sunburst blue dial is a standout feature. Limited water resistance is a shared concern.

Spinnaker Hull Riviera

Owners praise the Spinnaker Hull Riviera's build quality, highlighting its milled clasp, solid links, and effective anti-reflective coating on the sapphire crystal. The watch features a sandwich dial with Superluminova, measures 42mm in diameter, 12mm thick with a 48mm lug-to-lug span, and uses a Seiko NH35 movement. Accuracy is reported as excellent, with one owner noting a gain of only +2 seconds over seven days. The crystal is noted as being fused to the case, leading to a repair quote of $198 for a cracked crystal, a cost considered excessive by some owners relative to the watch's price. Lume is considered mediocre, and some would have preferred a 4Hz movement. Overall, owners rate the Spinnaker Hull Riviera highly for its robust build and impressive accuracy at its price point.

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